page_title: Crepidula
section_title: Species
hierarchical_section_title: Crepidula / Species
caption_attribution_description: English: Crepidula walshi L. A. Reeve, 1859, a slipper snail from the family Calyptraeidae
context_page_description: Crepidula, commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails, hat snails, spiny slipper snails, and cup-and-saucer snails as well as Crepipatella, Siphopatella, Grandicrepidula, and Maoricrypta.
  These recent changes in the definition of Crepidula are based on both DNA sequence data as well as anatomical work. Dissections of various calyptraeids show that species that are now placed in Grandicrepidula and Maoricrypta are anatomically very different from the true Crepidula. If only the shells are examined this difference is not apparent. This distinction is supported by DNA sequence data from 3 genes.
  The genus Crepidula is probably the best studied group within the calyptraeids. A variety of species are commonly used in developmental, ecological, and behavioral research. They have been the major focus of research on protandrous sex-change in marine invertebrates and have been used to demonstrate that sex change is environmentally mediated.
context_section_description: Species within the genus Crepidula include:
  Crepidula adunca G. B. Sowerby I, 1825
  Crepidula aeola Dall, 1927
  Crepidula aplysioides Reeve, 1859
  Crepidula arenata Broderip, 1834
  Crepidula argentina Simone, Pastorino & Penchaszadeh, 2000
  Crepidula atrasolea Collin, 2000
  Crepidula badisparsa Collin, 2005
  Crepidula cachimilla Cledon, Simone & Penchaszadeh, 2004
  Crepidula carioca Simone, 2006
  Crepidula cerithicola (C.B.Adams, 1852)
  Crepidula complanata Krauss, 1848
  Crepidula convexa Say, 1822 - synonym: Crepidula glauca
  Crepidula coquimbensis Brown & Olivares, 1996
  Crepidula cymbaeformis Conrad, 1844
  Crepidula depressa Say, 1822
  Crepidula derjugini Golikov & Kussakin, 1962
  Crepidula excavata Broderip, 1834
  Crepidula fimbriata Reeve, 1859
  Crepidula fornicata (Linnaeus, 1758) - Common slipper shell, common Atlantic slippersnail, boat shell, quarterdeck shell.
  Crepidula glottidiarum Dall, 1905
  Crepidula goreensis Gmelin, 1791
  Crepidula incurva (Broderip, 1834)
  Crepidula intratesta Simone, 2006
  Crepidula lessonii (Broderip, 1834)
  Crepidula maculosa Conrad, 1846
  Crepidula margarita Simone, 2006
  Crepidula marginalis  Broderip, 1834
  Crepidula moulinsii Michaud, 1829
  Crepidula naticarum Williamson, 1905
  Crepidula navicella (Lesson, 1831)
  Crepidula navicula (Mörch, 1877)
  Crepidula nivea C.B. Adams, 1852
  Crepidula norrisiarum Williamson, 1905
  Crepidula nummaria Gould, 1846
  Crepidula onyx G. B. Sowerby I, 1824 - onyx slippersnail
  Crepidula perforans Valenciennes, 1846
  "Crepidula philippiana" Gallardo, 1977
  Crepidula plana Say, 1822
  Crepidula porcellana (Linnaeus, 1758)
  Crepidula protea (d'Orbigny, 1841)
  Crepidula pyguaia Simone, 2006
  Crepidula rostrata C. B. Adams, 1852
  Crepidula striolata Menke, 1851
  Crepidula unguiformis Lamarck, 1822
  Crepidula ustulatulina Collin, 2002
  Crepidula williamsi Coe, 1947
  Species brought into synonymy
  Crepidula aculeata (Gmelin, 1791): synonym of Bostrycapulus aculeatus (Gmelin, 1791)
  Crepidula aculeata (Gmelin, 1791) sensu Zenetos et al.2004: synonym of Bostrycapulus odites Collin, 2005
  Crepidula acuta H. C. Lea, 1842: synonym of Crepidula convexa Say, 1822
  Crepidula adspersa Dunker, 1846: synonym of Crepidula porcellana Lamarck, 1801
  Crepidula bilobata Reeve, 1859: synonym of Crepidula lingulata Gould, 1846: synonym of Crepipatella lingulata (Gould, 1846)
  Crepidula calceolina Deshayes, 1830: synonym of Crepidula unguiformis Lamarck, 1822
  Crepidula californica Tryon, 1886: synonym of Crepidula aculeata (Gmelin, 1791): synonym of Bostrycapulus aculeatus (Gmelin, 1791)
  Crepidula calyptraeiformis Deshayes, 1830: synonym of Bostrycapulus calyptraeiformis (Deshayes, 1830)
  Crepidula candida Risso, 1826: synonym of Crepidula unguiformis Lamarck, 1822
  Crepidula capensis Quoy & Gaimard, 1835: synonym of Crepipatella capensis (Quoy & Gaimard, 1835)
  Crepidula cataldi Parenzan, 1970: synonym of Crepidula unguiformis Lamarck, 1822
  Crepidula coei Berry, 1950: synonym of Crepidula naticarum Williamson, 1905
  Crepidula contorta Quoy & Gaimard, 1832: synonym of Maoricrypta monoxyla (Lesson, 1830)
  Crepidula costata G. B. Sowerby I, 1824: synonym of Maoricrypta costata (G. B. Sowerby I, 1824)
  Crepidula costata Deshayes, 1830: synonym of Maoricrypta costata (G. B. Sowerby I, 1824)
  Crepidula costulata Dunker, 1852: synonym of Crepidula incurva (Broderip, 1834)
  Crepidula crepidula (Linnaeus, 1767): synonym of Crepidula unguiformis Lamarck, 1822
  Crepidula depressa Deshayes, 1830: synonym of Crepidula dilatata Lamarck, 1822: synonym of Crepipatella dilatata (Lamarck, 1822)
  Crepidula deshayesii de Folin, 1867: synonym of Crepidula unguiformis Lamarck, 1822
  Crepidula desmoulinsi Locard, 1886: synonym of Crepidula moulinsii Michaud, 1829
  Crepidula dilatata Lamarck, 1822: synonym of Crepipatella dilatata (Lamarck, 1822)
  Crepidula dorsata (Broderip, 1834): synonym of Crepipatella dorsata (Broderip, 1834)
  Crepidula excisa Philippi, 1849: synonym of Ergaea walshi (Reeve, 1859)
  Crepidula explanata Gould, 1853: synonym of Crepidula perforans (Valenciennes, 1846)
  Crepidula exuviata Reeve, 1859: synonym of Crepidula perforans (Valenciennes, 
caption: Crepidula walshi, now Siphopatella walshi
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